Nut and bolt lock or fastener



I. H. WILSON.

NUT AND BOLT LOCKOR FASTENER.

APPLICATION FILED JUNE 20, 1919.

1,332,015. Patented Feb. 24,1920.

ATTORNEYS UNITED STATES Nirr AND 130m: LOCK on FASTENER.

Specification of Letters Patent.

Patented Feb. 24, 1929.

Application filed June 20, 1919. Serial No. 305,616.

' for a nut or bolt, or both nut and bolt applicable to a fish plate, rail fastening or other like member to be connected, and it consists in forming such member with a lock or fastening for the purpose stated integral with said member, whereby the lock or fastening cannot work itself loose and slip from the bolt and so be lost, while on the contrary, it will preserve its position and retain its lloociking or fastening feature on the nut and The invention is satisfactorily illustrated in the accompanying drawing, but the important instrumentalities thereof may be varied, and so it is to be understood that the invention is not limited to the specific details shown and described, as long as they are within the spirit or scope of the claim.

Figure 1 represents a perspective view of a nut and bolt lock or fastener embodying my invention.

Fig. 2 represents a vertical section thereof.

Fig. 3 represents a horizontal section on line 33 Fig. 2.

Fig. 4 represents a side elevation of a portion of a fish plate or rail fastening having thereon 'a nut or bolt fastening embodying my invention.

Similar numerals of reference indicate corresponding parts in the figures.

Referring to the drawings 1 designates fish plates or rail fasteners, and 2 designate the bolts for connecting the same with the rails 3, said bolts being provided with the nuts 4 for tightening purposes usual in such cases.

5 designates a lock or a fastener for either of the nuts 4 and 6 designates a lock or fastener for either of the bolts 2.

Each of said looks or fasteners consists of a ring shaped body of the form of a resilient spiral convolution which is separated or divided at a certain portion of the convolution providing two oppositely disposed terminals 7 and 8 independent of each other, the normal positions of which are shown in Figs. 2 and 3, it being seen that one of said looks or fastenings is between the nut and the adjacent plate 1, and the other lock or fastening is between the head of the bolt and the opposite plate 1.

When the nut is tightened the terminal portions of the ring are brought together, and the edges of said portions are compressed in one instance against the inner side of the nut and the adjacent plate 1, and the terminals of the other ring are brought together, and the edges of said portions are compressed in the other instance against the inner side of the head of the bolt and the adjaccnt plate 1, so that said edges of the two rings are caused to bite the contiguous portions of the nut, bolt head and plates 1 respectively, thus looking or fastening the nut and bolt and so preventing unscrewing thereof.

Attention is drawn to the fact that the resilient rings are integral portions of the outer faces of the plates 1 respectively, they being cut from the latter to partial extent and shaped leaving portions 9 connected with said outer faces of the plates, whereby the rings remain integral with the plates respectively and retain their resiliency having been properly tempered whereby said rings cannot be separated from said plates, and they are not liable to be lost from the bolts, it being known that separate rings of the character stated are liable to open or spread by the vibrations of the nut and bolt to which they are subjected when in use, and so they slip or work off from position thereby ending their service, this being prevented by my construction.

If desired, the rings may be primarily Q t V r 1,332,015

Having thus described my invention what other portion of said face integral with the I claim as new and desire to secure by Letmaterial of the latter, both portions being 10 ters Patent,is around the Wall of the bolt opening therein.

A nut or bolt lock or fastener-consisting 5 of a fish plate or the like, and a resilient split JOHN W N- ring on the face thereof, said ring having a Witnesses: N portion set out froman adjacent'portion of JOHN A. M

said face and another portion joining an N. ,BUSSIJNGER. 

